Texas Instruments TPS60100PWP, TPS60100EVM-131, TPS60100PWPR Datasheet
TPS60100
REGULATED 3.3 V 200-mA LOW-NOISE
CHARGE PUMP DC/DC CONVERTER
SLVS213B – MAY 1999 – REVISED SEPTEMBER 1999
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
features
D
Up to 200-mA Output Current
D
Less Than 5-mVpp Output Voltage Ripple
D
No Inductors Required/Low EMI
D
Regulated 3.3-V ±4% Output
D
Only Four External Components Required
D
Up to 90% Efficiency
D
1.8-V to 3.6-V Input Voltage Range
D
50-µA Quiescent Supply Current
D
0.05-µA Shutdown Current
D
Load Isolated in Shutdown
D
Space-Saving Thermally-Enhanced TSSOP
PowerPAD Package
D
Evaluation Module Available
(TPS60100EVM–131)
applications
Replaces DC/DC Converters With Inductors in
– Battery-Powered Applications
– Two Battery Cells to 3.3-V Conversion
– Portable Instruments
– Battery-Powered Microprocessor and
DSP Systems
– Miniature Equipment
– Backup-Battery Boost Converters
– PDAs
– Laptops
– Handheld Instrumentation
– Medical Instruments
– Cordless Phones
description
The TPS60100 step-up, regulated charge pump
generates a 3.3-V ±4% output voltage from a
1.8-V to 3.6-V input voltage (two alkaline, NiCd, or
NiMH batteries). Output current is 200 mA from a
2-V input. Only four external capacitors are
needed to build a complete low-noise dc/dc
converter. The push-pull operating mode of two
single-ended charge pumps assures the low
output voltage ripple as current is continuously
transferred to the output. From a 2-V input, the
TPS60100 can start into full load with loads as low
as 16 Ω.
The TPS60100 features either constant frequency mode to minimize noise and output voltage
ripple or the power-saving pulse-skip mode to
extend battery life at light loads. The TPS60100
switching frequency is 300 kHz. The logic
shutdown function reduces the supply current to
1-µA (max) and disconnects the load from the
input. Special current-control circuitry prevents
excessive current from being drawn from the
battery during start-up. This dc/dc converter
requires no inductors and has low EMI. It is
available in the small 20-pin TSSOP PowerP AD
package (PWP).
Copyright 1999, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a trademark of Texas Instruments Incorporated.
output voltage ripple
typical operating circuit
Figure 1
3.45
10
3.25
3.3
3.35
3.4
3.05
3.1
3.15
3.2
501234 6789
t – Time – µs
– Output Voltage – VV
O
SKIP =COM = 3V8 = 0 V
VIN = 2.4 V
IO = 200 mA
CO = 22 µF
X5R Ceramic
IN
IN
C1+
C1–
ENABLE
OUT
OUT
FB
C2+
C2–
SYNC
SKIP COM 3V8
PGND GND
INPUT
1.8 V to
3.6 V
CIN
10 µF
OUTPUT
3.3 V
200 mA
C
O
22 µF
C
2F
2.2 µF
C
1F
2.2 µF
+
OFF/ON
TPS60100
+
TPS60100
REGULATED 3.3 V 200-mA LOW-NOISE
CHARGE PUMP DC/DC CONVERTER
SLVS213B – MAY 1999 – REVISED SEPTEMBER 1999
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
GND
SYNC
ENABLE
FB
OUT
C1+
IN
C1–
PGND
PGND
GND
3V8
COM
SKIP
OUT
C2+
IN
C2–
PGND
PGND
PWP PACKAGE
(TOP VIEW)
Figure 2. Bottom View of PWP Package,
Showing the Thermal Pad
Thermal
Pad
AVAILABLE OPTIONS
PACKAGE
TSSOP
†
(PWP)
TPS60100PWP
†
This package is available taped and reeled. To order this packaging
option, add an R suffix to the part number (e.g., TPS60100PWPR).
Terminal Functions
TERMINAL
NAME NO.
I/O
DESCRIPTION
3V8 19 I Mode selection.
When 3V8 is logic low the charge pump operates in the regulated 3.3-V mode. When 3V8 is connected to IN the
regulator operates in preregulated 3.8-V mode.
C1+ 6 Positive terminal of the charge-pump capacitor C
1F
C1– 8 Negative terminal of the charge-pump capacitor C
1F
C2+ 15 Positive terminal of the charge-pump capacitor C
2F
C2– 13 Negative terminal of the charge-pump capacitor C
2F
COM 18 I Mode selection.
When COM is logic low the charge pump operates in push-pull mode to minimize output ripple. When COM is
connected to IN the regulator operates in single-ended mode requiring only one flying capacitor.
ENABLE 3 I ENABLE Input. The device turns off, the output disconnects from the input, and the supply current decreases to
0.05 µA when ENABLE is a logic low. Connect ENABLE to IN for normal operation.
FB 4 I FEEDBACK input. Connect FB to OUT as close to the load as possible to achieve best regulation. Resistive divider
is on chip to match internal reference voltage of 1.22 V .
GND 1, 20 GROUND. Analog ground for internal reference and control circuitry. Connect to PGND through a short trace.
IN 7, 14 I Supply Input. Connect to an input supply in the 1.8-V to 3.6-V range. Bypass IN to GND with a (CO/2) µF capacitor.
Connect both INs through a short trace.
OUT 5, 16 O Regulated power output. Connect both OUT s through a short trace and bypass OUT to GND with the output filter
capacitor CO. VO = 3.3 V when 3V8 = low and VO = 3.8 V when 3V8 = high.
PGND 9–12 PGND power ground. Charge-pump current flows through this pin. Connect all PGNDs together.
SKIP 17 I Mode selection. When SKIP is logic low, the charge pump operates in constant-frequency mode. Output ripple
and noise are minimized in this mode. When SKIP is connect to IN, the device operates in pulse skip mode.
Quiescent current is lowest in this mode.
SYNC 2 I Selection for external clock signal. Connect to GND to use the internally generated clock signal. Connect to IN
for external synchronization. In this case, the clock signal needs to be fed through 3V8 and the device operates
in the regulated 3.3-V mode.
TPS60100
REGULATED 3.3 V 200-mA LOW-NOISE
CHARGE PUMP DC/DC CONVERTER
SLVS213B – MAY 1999 – REVISED SEPTEMBER 1999
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
absolute maximum ratings (unless otherwise noted)
†‡
Input voltage range, V
I
(IN, OUT, ENABLE, SKIP, COM, 3V8, FB, SYNC) –0.3 V to 5.5 V. . . . . . . . . . . . . . . .
Differential input voltage, V
ID
(C1+, C2+ to GND) –0.3 V to (V
OUT
+ 0.3 V). . . . . . . . . . . . . . . . . . . . . . . . . . . .
Differential input voltage, V
ID
(C1–, C2– to GND) –0.3 V to (VIN + 0.3 V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous total power dissipation See Dissipation Rating Tables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous output current 300 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
–55°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1/16 inch) from case for 10s 260°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum junction temperature, TJ 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
‡
V
ENABLE
, V
SKIP
, V
COM
, V
3V8
and V
SYNC
can exceed VIN up to the maximum rated voltage without increasing the leakage current drawn by these
mode select inputs.
DISSIPATION RATING TABLE 1 – FREE-AIR TEMPERATURE (see Figure 3)
T
≤ 25°C DERATING FACTOR T
= 70°C T
= 85°C
PACKAGE
A
POWER RATING ABOVE TA = 25°CAPOWER RATINGAPOWER RATING
PWP 700 mW 5.6 mW/°C 448 mW 364 mW
DISSIPATION RATING TABLE 2 – CASE TEMPERATURE (see Figure 4)
T
≤ 62.5°C DERATING FACTOR T
= 70°C T
= 85°C
PACKAGE
C
POWER RATING ABOVE TC = 62.5°CCPOWER RATINGCPOWER RATING
PWP 25 W 285.7 mW/°C 22.9 W 18.5 W
Figure 3
1200
800
400
0
25 50 75 100
– Maximum Continuous Dissipation – mW
DISSIPATION DERATING CURVE
§
vs
FREE-AIR TEMPERATURE
125 150
1400
1000
600
200
PWP Package
R
θJA
= 178°C/W
P
D
TA – Free-Air Temperature – °C
Figure 4
MAXIMUM CONTINUOUS DISSIPATION
§
vs
CASE TEMPERATURE
TC – Case Temperature – °C
15
10
5
0
25 50 75 100
20
25
30
125 150
Measured with the exposed thermal pad
coupled to an infinite heat sink with a
thermally conductive compound (the
thermal conductivity of the compound
is 0.815 W/m ⋅°C). The R
θJC
is 3.5°C/W.
PWP Package
– Maximum Continuous Dissipation – W
P
D
§
Dissipation rating tables and figures are provided for maintenance of junction temperature at or below absolute maximum temperature of 150°C.
It is recommended not to exceed a junction temperature of 125°C.
TPS60100
REGULATED 3.3 V 200-mA LOW-NOISE
CHARGE PUMP DC/DC CONVERTER
SLVS213B – MAY 1999 – REVISED SEPTEMBER 1999
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics at CIN = 10 µF, C1F = C2F = 2.2 µF†, CO = 22 µF, TC = –40°C to 85°C,
V
IN
= 2 V, VFB = VO, V
ENABLE
= VIN, V
SKIP
= VIN or 0 V and V
COM
= V
3V8
= V
SYNC
= 0 V (unless otherwise
noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
IN
Input voltage
1.8 3.6 V
V
IN(UV)
Input undervoltage lockout threshold 1.6 1.8 V
I
O(MAX)
Maximum output current 200 mA
1.8 V < VIN < 2 V, 0 < IO < 100 mA,
V
O(Start-Up)
= 3.3 V, TC = 25°C
3.17 3.3 3.43
V
O
Output voltage
2 V < VIN < 3.3 V, 0 < IO < 200 mA
3.17 3.3 3.43
V
3.3 V < VIN < 3.6 V, 0 < IO < 200 mA 3.17 3.3 3.47
V
O(RIP)
Output voltage ripple IO = 200 mA, V
SKIP
= 0 V 5
‡
mV
PP
I
O(LEAK)
Output leakage current VIN = 2.4 V, V
ENABLE
= 0 V 1 µA
Quiescent current V
= V
= 2.4 V
50 90 µA
I
Q
(no-load input current)
SKIP IN
V
SKIP
= 0 V, VIN = 2.4 V
1.5 mA
I
DD(SDN)
Shutdown supply current VIN = 2.4 V, V
ENABLE
= 0 V 0.05 1 µA
f
OSC(int)
Internal switching frequency VIN = 2.4 V 200 300 400 kHz
f
OSC(ext)
External clock frequency V
SYNC
= VIN,V
IN
= 1.8V to 3.6 V 400 600 800 kHz
External clock duty cycle V
SYNC
= VIN,V
IN
= 1.8V to 3.6 V 20% 80%
Efficiency IO = 100 mA 80%
V
INL
Input voltage low,
ENABLE, SKIP, COM, 3V8, SYNC
VIN = 1.8 V
0.3 ×
V
IN
V
V
INH
Input voltage high,
ENABLE, SKIP, COM, 3V8, SYNC
VIN = 3.6 V
0.7 ×
V
IN
V
I
I(LEAK)
Input leakage current,
ENABLE, SKIP, COM, 3V8, SYNC
V
ENABLE
= V
SKIP
= V
COM
= V
3V8
=
V
SYNC
= V
GND
or V
IN
0.01 0.1 µA
Output load regulation
VO = 3.3 V, 1 mA < IO < 200 mA
TC = 25°C
0.004 %/mA
Output line regulation
2 V < VIN < 3.3 V, VO = 3.3 V,
IO = 100 mA, TC = 25°C
0.6 %/V
Short circuit current
VIN = 2.4 V VO = 0 V,
TC = 25°C
125 mA
†
Use only ceramic capacitors with X5R or X7R dielectric as flying capacitors.
‡
Achieved with CO = 22 µF X5R dielectric ceramic capacitor
TPS60100
REGULATED 3.3 V 200-mA LOW-NOISE
CHARGE PUMP DC/DC CONVERTER
SLVS213B – MAY 1999 – REVISED SEPTEMBER 1999
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics for preregulated 3.8-V Mode (V
(3V8)
= VIN), CIN = 10 µF,
C
1F
= C2F = 2.2 µF†, CO = 22 µF, TC = –40°C to 85°C, VIN = 2.4 V, VFB = VO, V
ENABLE
= VIN,
V
SKIP
= VIN or 0 V and V
COM
= V
SYNC
= 0 V (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
IN
Input voltage 2.2 3.6 V
I
O(MAX)
Maximum output current 200 mA
V
O
Output voltage 2.2 V < VIN < 3.6 V, 0 < IO < 200 mA 3.6 3.8 4 V
I
O(LEAK)
Output leakage current V
ENABLE
= 0 V 1 µA
Quiescent current
V
SKIP
= V
IN
60 µA
I
Q
(no-load input current)
V
SKIP
= 0 V
2 mA
I
DD(SDN)
Shutdown supply current V
ENABLE
= 0 V 0.05 1 µA
f
OSC
Internal switching frequency 200 300 400 kHz
Short circuit current VO = 0 V, TC = 25°C 125 mA
†
Use only ceramic capacitors with X5R or X7R dielectric as flying capacitors.
TPS60100
REGULATED 3.3 V 200-mA LOW-NOISE
CHARGE PUMP DC/DC CONVERTER
SLVS213B – MAY 1999 – REVISED SEPTEMBER 1999
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
†
Figure 5
50
40
20
0
0.1 1 10
Efficiency – %
70
90
EFFICIENCY
vs
OUTPUT CURRENT (V
O
= 3.3 V)
100
100 1000
80
60
30
10
IO – Output Current – mA
V
(SKIP)
= VIN, V
(3V8)
= 0 V
VIN = 1.8 V
VIN = 2 V
VIN = 2.4 V
VIN = 2.7 V
Figure 6
50
40
20
0
110
Efficiency – %
70
90
EFFICIENCY
vs
OUTPUT CURRENT (V
O
= 3.3 V)
100
100 1000
80
60
30
10
IO – Output Current – mA
V
(SKIP)
= 0 V
V
(3V8)
= 0 V
VIN = 1.8 V
VIN = 2 V
VIN = 2.4 V
VIN = 2.7 V
Figure 7
50
40
20
0
0.1 1 10
Efficiency – %
70
90
EFFICIENCY
vs
OUTPUT CURRENT (V
O
= 3.8 V)
100
100 1000
80
60
30
10
IO – Output Current – mA
V
(SKIP)
= V
IN
V
(3V8)
= V
IN
VIN = 3 V
VIN = 2.3 V
VIN = 2.7 V
Figure 8
50
40
20
0
110
Efficiency – %
70
90
EFFICIENCY
vs
OUTPUT CURRENT (V
O
= 3.8 V)
100
100 1000
80
60
30
10
IO – Output Current – mA
V
(SKIP)
= 0 V
V
(3V8)
= V
IN
VIN = 3 V
VIN = 2.3 V
VIN = 2.7 V
†TC = 25°C, V
COM
= V
SYNC
= 0 V, CIN = 10 µF, C1F = C2F = 2.2 µF, CO = 22 µF, unless otherwise noted
TPS60100
REGULATED 3.3 V 200-mA LOW-NOISE
CHARGE PUMP DC/DC CONVERTER
SLVS213B – MAY 1999 – REVISED SEPTEMBER 1999
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
†
Figure 9
40
35
30
25
1.5 2 2.5 3
– Quiescent Supply Current –
50
55
QUIESCENT SUPPLY CURRENT
vs
INPUT VOLTAGE
60
3.5 4
45
VIN – Input Voltage – V
I
Q
Aµ
V
(SKIP)
= V
IN
V
(3V8)
= 0 V
Figure 10
1.5
1.25
1
1.5 2 2.5 3
1.75
2
3.5 4
– Quiescent Supply Current – mA
QUIESCENT SUPPLY CURRENT
vs
INPUT VOLTAGE
VIN – Input Voltage – V
I
Q
V
(SKIP)
= 0 V
V
(3V8)
= 0 V
Figure 11
IO – Output Current – mA
3.3
3.2
3.1
3
110
– Output Voltage – V
3.4
3.5
OUTPUT VOLTAGE
vs
OUTPUT CURRENT
3.6
100 1000
V
O
V
(SKIP)
= VIN or 0 V
V
(3V8)
= 0 V
VIN = 2.7 V
VIN = 2.4 V
VIN = 2 V
VIN = 1.8 V
VIN = 3.6 V
Figure 12
IO – Output Current – mA
3.8
3.7
3.6
3.5
110
– Output Voltage – V
3.9
4
OUTPUT VOLTAGE
vs
OUTPUT CURRENT
4.1
100 1000
V
O
V
(SKIP)
= VIN or 0 V
V
(3V8)
= V
IN
VIN = 3.6 V
VIN = 2.7 V
VIN = 2.4 V
†TC = 25°C, V
COM
= V
SYNC
= 0 V, CIN = 10 µF, C1F = C2F = 2.2 µF, CO = 22 µF, unless otherwise noted
Loading...